Annuals planted in front of a brick wall in sun will have a longer bloom season. This warm microclimate delays the date for the first fall frost.

Written by

Richard Poffenbaugh
CentralOhio.com

By this date in October, there is often evidence of a light frost, when the lawn has a white frosty appearance in early morning. Soon we should see a "hard" frost of 28 degrees or colder for at least four hours. At that point, most seasonal plants will be well "cooked."